CWT and nonlinear inversion applications to map thin-bed of the Bir Tlacsin Formation.

What is it about?

Using CWT and nonlinear inversion attributes to determine thin-bed of the shaly facies (Bir Tlacsin Formation) which overlays the producing oil reservoir (Mamuniyat Formation). Defining the Bir Tlacsin facies (BT) is important because it impacts hydrocarbon accumulation and migration. The BT layer is below the seismic resolution and the data is affected by reflection interference. The aim of the paper is to define the shaly facies on the seismic data using seismic attributes (Spectral decomposition and seismic inversion) ,and address how mapping the top reservoir can be improved. The results were in agreements and the facies is well-mapped.

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Why is it important?

The application of those attributes tend to give insight on - How to select the right attributes that suit data and capture the seismic elastic property . - How thin-beds and interference can affect the seismic data - How to utilize geophysical and geologic observations on seismic data to solve geological problems - How nonlinear genetic inversion can be a powerful tool to capture features on well data that could not be determined on conventional seismic data.

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